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Rafael S.T. Vieira


Last seen: Today
3.134 total contributions since 2020

I'm a post-doctoral researcher of Computer Science at the Federal University of Ceará. And I hold a Ph.D. in Computer Science with an emphasis in Computer Graphics.

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Rafael S.T. Vieira's Badges

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  • Knowledgeable Level 2
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  • Card Games Master
  • Number Manipulation II Master
  • Strings III Master
  • Strings II Master
  • Sequences And Series III Master
  • R2016b Feature Challenge Master
  • Strings I Master
  • Number Manipulation I Master
  • Sequences And Series II Master
  • Sequences And Series I Master
  • Magic Numbers II Master
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Solved


generate nth pentatope number
https://en.wikipedia.org/wiki/Pentatope_number

alrededor de 5 horas ago

Solved


check whether a number is a pentatope number
<https://oeis.org/A000332>

alrededor de 5 horas ago

Solved


Be happy
check whether the given number is happy in b-base. * A happy number can be defined as a number which will yield 1 when it is ...

alrededor de 7 horas ago

Solved


Cantor counting
Find the nth cantor's rational number. the sequence is given below in the link. Sequence: 1/1,1/2,2/1,3/1,2/2,1/3,1/4... ... .....

alrededor de 7 horas ago

Solved


Pell numbers
Find the nth pell number <https://en.wikipedia.org/wiki/Pell_number>

alrededor de 8 horas ago

Solved


GJam 2013 Veterans: Baby Height Prediction
This Challenge is derived from <http://code.google.com/codejam/contest/2334486/dashboard#s=p1 GJam 2013 Veterans Baby Height>. O...

alrededor de 8 horas ago

Solved


GJam 2013 China Event: Happy Teams
This Challenge is derived from <http://code.google.com/codejam/contest/2933486/dashboard#s=p0 GJam 2013 China Bad Horse>. The pr...

alrededor de 8 horas ago

Solved


GJam 2013 China Event: Happy Teams 100 Pairs
This Challenge is derived from <http://code.google.com/codejam/contest/2933486/dashboard#s=p0 GJam 2013 China Bad Horse> partial...

alrededor de 9 horas ago

Solved


Mmm! Multi-dimensional Matrix Multiplication
You have got a couple of multi-dimensional matrices, A and B. And want to multiply them. For the first 2 dimensions, an ordinary...

alrededor de 12 horas ago

Solved


Accurate Division
Given three integers x, y and d, return x/y (as a string) to d significant digits. Remove leading and trailing zeros. Example...

alrededor de 13 horas ago

Solved


Church Encoding
Church encoded numeral is a function which takes two arguments _f_ and _x_ and applies _f_ to _x_ several times. For example,...

alrededor de 14 horas ago

Solved


Number of even divisors of a given number
Given a Number n, return the number of its even divisors without listing them. example: n=14 ; EvenDivisors={2,14} ; y=2 ...

alrededor de 14 horas ago

Solved


Bell Triangle
Form the bell triangle upto nth bell number posotion; * if n=5 * y= [1 0 0 0 0; 1 2 0 0...

alrededor de 15 horas ago

Solved


Tell your secret
A secret can be told only to 2 persons in 5 minutes. Now, these 2 more persons can spread the secret to 4 other people in the ne...

alrededor de 15 horas ago

Solved


Castling-02
This is a follow up of problem <https://www.mathworks.com/matlabcentral/cody/groups/1/problems/45329-castling-01> Given...

alrededor de 16 horas ago

Solved


Castling-01
Given the position of only one player's chess pieces(some of them) on the chessboard, figure out whether castling is valid or no...

alrededor de 16 horas ago

Solved


Should Mr McNugget even get out of bed today?
As we learned in <http://www.mathworks.com/matlabcentral/cody/problems/42888-frobenius-mcnugget-factorization an earlier problem...

alrededor de 17 horas ago

Solved


Frobenius McNugget Factorization
Mr. Frobenius McNugget is a peculiar man. As you might expect, he likes to eat Chicken McNuggets. But his love of number the...

alrededor de 18 horas ago

Solved


Iccanobif numbers 1
There are a lot of problems in Cody that deal with Fibonacci numbers (1, 1, 2, 3, 5, 8, 13, 21 etc...) so let's turn things arou...

alrededor de 19 horas ago

Solved


GJam: 2013 Rd1a Bullseye Painting - Large Numbers
<http://code.google.com/codejam/contests.html Google Code Jam> 2013 Round 1a Bullseye challenge is to determine how many full ri...

alrededor de 20 horas ago

Solved


GJam: 2013 Rd1a Bullseye Painting
<http://code.google.com/codejam/contests.html Google Code Jam> 2013 Round 1a Bullseye challenge is to determine how many full ri...

alrededor de 20 horas ago

Solved


Primes for Large N: 2^30, System Memory Limit
This Challenge is to further improve the "primes" function for speed/memory usage to the Limit of Cody Memory. The Matlab fun...

alrededor de 21 horas ago

Solved


GJam 2013 Veterans: Ocean View (Large)
This Challenge is derived from <http://code.google.com/codejam/contest/2334486/dashboard#s=p2 GJam 2013 Veterans Ocean View>. Th...

alrededor de 21 horas ago

Solved


GJam 2013 Veterans: Ocean View (Small)
This Challenge is derived from <http://code.google.com/codejam/contest/2334486/dashboard#s=p2 GJam 2013 Veterans Ocean View>. Th...

alrededor de 22 horas ago

Solved


Area-07
This is a follow up of the problem <https://www.mathworks.com/matlabcentral/cody/problems/45341-area-06> in this case, fi...

1 día ago

Solved


Area-06
The length of the side of a square is given. Draw 4 quarter-circles inside the square from 4 corners with a radius equal to t...

1 día ago

Solved


Area-05
The dimension of a rectangle is given. There are two circles of equal size that are inscribed inside it.The circles are tangent ...

1 día ago

Solved


Frugal number
check whether n is a frugal number * a frugal number is a natural number in a given number base that has more digits than the...

1 día ago

Solved


Primes Faster for Large N
This Challenge is to improve the "primes" function for speed. This may be accomplished by fixing memory usage. The Matlab fun...

1 día ago

Solved


Logical array indexing - part 1
Given an array |A| of size |p x q| , return an array |Y| of the same size such that the following conditions are satisfied. (...

1 día ago

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